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Advance Datasheet

High-side Power Distribution Switch with Enable and Flag AP2820

Jul. 2012 Rev 1. 7 BCD Semiconductor Manufacturing Limited

General Description

The AP2820 is an integrated high-side power switch

that consists of N-Channel MOSFET, charge pump,

over current & temperature and other related protection

circuits. The switch’s low R

DS(ON)

, 60mΩ, is designed

to meet USB voltage drop requirements. The IC

includes soft-start to limit inrush current, over-current

protection, load short protection with fold-back, and

thermal shutdown to avoid switch failure during hot

plug-in. Under voltage lockout (UVLO) function is

used to ensure the device remain off unless there is a

valid input voltage present. A FLAG output is

available to indicate fault conditions to the local USB

controller.

The AP2820 is available in standard packages of

SOIC-8 and MSOP-8.

Applications

• USB Power Management

•

USB Bus/Self Powered Hubs

• Hot-plug Power Supplies

• Battery-charger Circuits

• Notebooks, Motherboard PCs

Features

•

Low MOSFET on Resistance: 60mΩ

• Compliant to USB Specifications

• Available 2 Versions of Load Ability:

Guarantee 2.0A Continuous Load for A/B/C/D

Version

Guarantee 2.5A Continuous Load for E/F/G/H

Version

• Logic Level Enable Pin: Available with

Active-high or Active-low Version

• Operating Voltage Range: 2.7V to 5.5V

• Low Supply Current:

75μA (Typ.) (For A/B/C/D versions)

80μA (Typ.) (For E/F/G/H versions)

• Low Shutdown Current: 1.0μA (Max)

• Under-voltage Lockout

• Soft Start-up

• Over-current Protection

• Over Temperature Protection

• Load Short Protection with Fold-back

• No Reverse Current When Power Off

• Deglitched FLAG Output with Open Drain

• With Output Shutdown Pull-low Resistor for

A/C/E/G Versions

• UL Approved (File No. E339337)

• Nemko CB Scheme IEC60950-1, Ref. Certif

No. NO62093

Figure 1. Package Types of AP2820

SOIC-8 MSOP-8

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